How to Proceed With Troubleshooting

NETWORKING: MULTIPLEX COMMUNICATION SYSTEM: HOW TO PROCEED WITH TROUBLESHOOTING

HINT
* Use this procedure to troubleshoot the multiplex communication system.
* *: Use the Techstream

1. VEHICLE BROUGHT TO WORKSHOP

NEXT -- Continue to next step.

2. CHECK FOR DTC*

(a) Check for DTCs and note any codes that are output Multiplex Communication System.

(b) Clear the DTC.

(c) Recheck for DTCs. Try to prompt the DTC by simulating the original activity that the DTC suggests.

Result:





B -- GO TO DTC CHART Multiplex Communication System
A -- Continue to next step.

3. OVERALL ANALYSIS AND TROUBLESHOOTING

(a) Terminals of ECU Multiplex Communication System.

NEXT -- Continue to next step.

4. REPAIR OR REPLACE

NEXT -- Continue to next step.

5. CONFIRMATION TEST

NEXT -- END